WordPress: Get Post Titles

 
export default async function main(args) {
  
    const  { wpUsername, wpDomain, wpApikey } = args.inputVars
    const apiUrl = `https://${wpDomain}/wp-json/wp/v2/posts`;

    // Custom function to encode a string to Base64
    function base64Encode(str) {
        const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
        let encoded = '', i = 0;

        while (i < str.length) {
            const a = str.charCodeAt(i++);
            const b = i < str.length ? str.charCodeAt(i++) : 0;
            const c = i < str.length ? str.charCodeAt(i++) : 0;

            const b1 = (a >> 2) & 0x3F;
            const b2 = ((a & 0x03) << 4) | ((b >> 4) & 0x0F);
            const b3 = ((b & 0x0F) << 2) | ((c >> 6) & 0x03);
            const b4 = c & 0x3F;

            if (!i) {
                encoded += chars.charAt(b1) + chars.charAt(b2) + '==';
            } else if (i == str.length + 1) {
                encoded += chars.charAt(b1) + chars.charAt(b2) + chars.charAt(b3) + '=';
            } else {
                encoded += chars.charAt(b1) + chars.charAt(b2) + chars.charAt(b3) + chars.charAt(b4);
            }
        }

        return encoded;
    }

    // Encode credentials
    const credentials = `${wpUsername}:${wpApikey}`;
    const base64Credentials = base64Encode(credentials);

    // Fetch API data with Basic Authentication
    try {
        const response = await fetch(apiUrl, {
            headers: {
                "Authorization": `Basic ${base64Credentials}`
            }
        });

        // Check if the response was ok (status 200)
        if (response.ok) {
            const posts = await response.json;  // Parse JSON response

            // Check if there are posts
            if (posts.length > 0) {
                // Map each post title to a formatted string with bullet points
                const titles = posts.map(post => `• ${post.title.rendered} (${post.id})`).join('\n');


                return {
                    outputVars: {
                        wpPostTitles: titles
                    },
                    next: {
                        path: 'success'
                    },
                    trace: [
                        {
                            type: 'debug',
                            payload: {
                                message: `Fetched and processed post titles`
                            }
                        }
                    ],
                };
            } else {
                return {
                    outputVars: {
                        error: 'No posts found'
                    },
                    next: {
                        path: 'error'
                    },
                    trace: [
                        {
                            type: 'debug',
                            payload: {
                                message: 'No posts available at the API endpoint'
                            }
                        }
                    ],
                };
            }
        } else {
            throw new Error(`HTTP error! status: ${response.status}`);
        }
    } catch (error) {
        return {
            outputVars: {
                error: error.toString()
            },
            next: {
                path: 'error'
            },
            trace: [
                {
                            type: 'debug',
                            payload: {
                                message: `Error fetching posts: ${error}`
                            }
                        }
            ],
        };
    }
}